Im currently in the market for a new board and already have a skate banana and I was looking into a never summer board thats meant for the opposite conditions of the skate banana, I don't do the whole park/jumps type of riding, and i would consider myself more towards the advanced stages of riding. I find that the skate banana gets really shaky and unstable at high speeds, what would be something that can handle that in the NS line up? Thank you.
I personally hate the Skate Banana for that reason. I dislike BTX/MTX in general (to be fair the last Lib/Gnuboard I rode was like 2010).
So to start out, Never Summer is not the only company out there... but since you are asking, in my opinion Never Summer is basically the opposite of a Skate Banana -they are more damp (less shake) and stable. For you I would look at the Cobra / Premier / Raptor (those get progressively stiffer).
Again, there are lots of boards that are better than the Skate Banana for the riding you want to do, but to narrow it down... we need more information. Where do you ride? Do you ride groomers or trees more often (percentages help)? Do you get a lot of powder where you ride, etc. Any video of yourself riding might help too.